| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 3047 |
21.6%
|
| 1 | Yes | 9695 |
68.7%
|
| 8 | Don't know | 1362 |
9.7%
|
| 9 | Missing | 103 | |
| Sysmiss | 2515 |